In the Internet hosting field, cloud architecture means employing different web servers for every single service that is a part of the hosting service. In other words, your files, databases and emails will not run on the very same machine, but on separate ones. Such a setup results in higher uptime and much better overall performance because only one type of system processes will run on the server, so the resources will be utilized as effectively as possible. A lot of companies nowadays advertise their cloud services, but what they offer is not real cloud architecture for the reason that the hosting control panels they use are not designed to operate with anything different from a single server. If everything is run on one machine, a trouble with just a single service can take the whole server offline. In this light, if you are looking for cloud hosting, you should verify if the service you will receive is truly a cloud one or if this is a marketing trick.